what is the Merv Rating and how do you convert 1550 MPR to a Merv rating?
13739
I had this same question, and found this link: https://strivenindustries.zendesk.com/hc/en-us/articles/200372840-MERV-vs-MPR-rating Essentially, MPR of 1500 or over is MERV 12.
13740
The MERV rating is a standards manufacturers use to compare the efficiency of filters. The higher the rating, the better the efficiency I picked the following information off another site "the following MERV ratings measure filtration efficiency of particles ranging from 0.3 microns and up. With more an more emphasis being placed on micro particles, 3M developed their MPR Micro Particle Rating to measure filtration of even smaller particles, down to .001. Some competitors are beginning to adopt the new standard that 3M developed but there is still predominant use of MERV. As a reference, the 3M Micro furnace filters have a MPR of 1000. Their rough equivalent MERV rating is 13-14. So while their is currently no sure equation way to convert MERV to MPR, if you use the approximate MERV rating of the Micro filter MPR rated at 1000, then the 4" filters MPR rated at 1550 would conceivably exceed MERV 18, which currently puts their filtration in line with the more expensive NordicPure furnace filters. Because 3M uses this different measuring scale and system, it's difficult to do a straight comparison."
13741
While I am not sure the Filtrete Allergen Reduction Filter is exactly the same as the Filtrete filter shown in the following commercial website, the table shows a MERV of 11 for a MPR of 1500. All the products seem to be 1" rather than 4." I don't know if that affects the MERV. http://www.iallergy.com/filtrete-air-filter-comparison.phpThe bottom of this commercial website page also describes the relationship of MERV, MPR, and FPR ratings for AC and furnace filters:http://www.bestfilters.com/AC-Furnace-Filters_c_605.htmlBased on my reading of the table, a MERV of 11 seems consistent with MPR of 1550. While I am not sure the Filtrete Allergen Reduction Filter is exactly the same as the Filtrete filter shown in the following commercial website, the table shows a MERV of 11 for a MPR of 1500. All the products seem to be 1" rather than 4." I don't know if that affects the MERV. http://www.iallergy.com/filtrete-air-filter-comparison.phpThe bottom of this commercial website page also describes the relationship of MERV, MPR, and FPR ratings for AC and furnace filters:http://www.bestfilters.com/AC-Furnace-Filters_c_605.htmlBased on my... » Read More While I am not sure the Filtrete Allergen Reduction Filter is exactly the same as the Filtrete filter shown in the following commercial website, the table shows a MERV of 11 for a MPR of 1500. All the products seem to be 1" rather than 4." I don't know if that affects the MERV. http://www.iallergy.com/filtrete-air-filter-comparison.phpThe bottom of this commercial website page also describes the relationship of MERV, MPR, and FPR ratings for AC and furnace filters:http://www.bestfilters.com/AC-Furnace-Filters_c_605.htmlBased on my reading of the table, a MERV of 11 seems consistent with MPR of 1550. « Show Less
1299110
In general no. In order to use a Merv 12 to replace a Merv 11, you need to know if you system can handle the extra pressure drop caused by the higher efficiency Merv 12. My heat pump/ ventilation system cannot support the pressure drop of a Merv 12. Compressors operated above design limit will die sooner than normal. Consult with an above average HVAC company.
1221269
Well, I haven't looked for actual test results for proof, but from the packaging on mine: "This filter's performance has been rated MERV 8 based on the minimum efficiency observed during the industry standard ASHRAE #52.2 test. The test is a determination of the filter's ability to trap particles in the air we breathe. These particles range in size from .3-10 microns in diameter. Residential filters typically are rated in the range of MERV 1-10. Higher ratings indicate more efficient filters."
1516091
If I remember correctly the boair being a electrostatic filter does not have a MERV rating.
1216376
The box and filter both have a sticker on them that says MERV 10. The box says there is a MERV 13 option that is available.
594954
4.001V +- 1.2% http://service.kleintools.com/instructions/MM200_Instructions.pdf
1948405
Wikipedia tell me that 1220+ deg. is the milting point. No idea, good luck!
880791
I'm not sure what the MERV rating is, but I can tell you that these filters have been great.
1443053
Sorry. Don't know the answer to that question. Perhaps it would be listed in the product specs? Or you could call the mftr? (And apologies for the delay in replying. I don't check this email as often as I should.)
1299107
I don't know all the technical info but if you search on your computer with merve 11 it will bring up all the info you need.
1050341
MERV rating is a fabricated numbering system created by Filtrete. The higher the number the more particles it can remove from the air. This numbering system, however, is not used by any other filter manufacturing company and therefor is biased.
1856007
I have no idea. Perhaps should say "Mfrs." for manufacturers?? I bought these without simultaneously buying anything else.
201732
Dave, Don't know anything about "MERV levels" but the filter that came with my PM1200 works fine for me. I have to remove the standard filter weekly and "beat" out the dust but it is still working after 2 years.
1742742
I did a search on the internet and found this link: http://www.filters4life.com/What-is-MERV-rating-s/4961.htm . It give information from 1-16 and gives a color guide of red for the lowest, yellow, light green and darker green for the best. This indicates that 11-16 is in the darker green, with 16 cutting 95% of the dust and allergen particals. I'm glad you ask because that give me a better ideas of what I'll want the next time I purchase.
1511487
Nothing I can see except for the capacity rating on the package. No clue as to why it was changed and what the difference, if any, really is.
2053809
I have no clue, but you can query the mfr on their website. I've asked them questions previously, and they're very responsive.
633748
Regarding the rating on this filter, if you click on the photo for this ad, you should see an enlargement of the picture. The 1900 mpr rating should become visible.